Results 11 to 20 of about 583 (205)
On the Size of Subclasses of Quasi-Copulas and Their Dedekind–MacNeille Completion [PDF]
Mathematics, 2020 We study some topological properties of the class of supermodular n-quasi-copulas and check that the topological size of the Dedekind–MacNeille completion of the set of n-copulas is small, in terms of the Baire category, in the Dedekind–MacNeille ...
Fabrizio Durante +3 more
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Baire category results for quasi–copulas [PDF]
Dependence Modeling, 2016 The aim of this manuscript is to determine the relative size of several functions (copulas, quasi– copulas) that are commonly used in stochastic modeling.
Fabrizio Durante +2 more
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Bivariate measure-inducing quasi-copulas [PDF]
Fuzzy Sets and SystemsIt is well known that every bivariate copula induces a positive measure on the Borel $\sigma$-algebra on $[0,1]^2$, but there exist bivariate quasi-copulas that do not induce a signed measure on the same $\sigma$-algebra.
Nik Stopar
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Supports of quasi-copulas [PDF]
Fuzzy Sets and Systems, 2023 It is known that for every s∈]1, 2[there is a copula whose support is a self-similar fractal set with Hausdorff —and box-counting— dimension s. In this paper we provide similar results for (proper) quasi-copulas, in both the bivariate and multivariate ...
Juan Fernández Sánchez +2 more
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Quasi-Copulas, Copulas and Fuzzy Implicators
International Journal of Computational Intelligence Systems, 2020 In this paper, we study relations between fuzzy implicators and some kinds of fuzzy conjunctors, in particular, quasi-copulas and copulas. We show that there is a one-to-one correspondence between the classes of all quasi-copulas and 1-Lipschitz fuzzy ...
Radko Mesiar, Anna Kolesárová
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A Functional for Copulas and Quasi-Copulas [PDF]
ISRN Probability and Statistics, 2012 We recall and study some properties of a known functional operating on the set of n-copulas and determine conditions under such functional is well defined on the set of n-quasi-copulas.
Manuel Úbeda-Flores
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A hitchhiker's guide to quasi-copulas
Fuzzy Sets and Systems, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
J.J. Arias-García +2 more
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Quasi-copulas as linear combinations of copulas [PDF]
Fuzzy Sets and Systems, 2023 We prove that every quasi-copula can be written as a uniformly converging infinite sum of multiples of copulas. Furthermore, we characterize those quasi-copulas which can be written as a finite sum of multiples of copulas, i.e., that are a linear combination of two copulas.
Грегор Долинар +2 more
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On power stable quasi-copulas [PDF]
Proceedings of the 8th conference of the European Society for Fuzzy Logic and Technology, 2013 In our contribution we discuss the power stability of 1-Lipschitz binary aggregation functions. The main result is the characterization of power stable quasi-copulas by means of their dependence functions. The notions are illustrated by examples.
Anna Kolesárová, Radko Mesiar
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A Flexible Quasi-Copula Distribution for Statistical Modeling [PDF]
, 2022 Copulas, generalized estimating equations, and generalized linear mixed models promote the analysis of grouped data where non-normal responses are correlated. Unfortunately, parameter estimation remains challenging in these three frameworks. Based on prior work of Tonda, we derive a new class of probability density functions that allow explicit ...
Sarah S. Ji +3 more
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